Clutch disk



June 13, 1933. P. A; GREGORY 1,913,302

CLUTCH DISK Filed Nov. 10, 1931 5 Sheets-Sheet 1 ill- @8 6, A are 07jzwmih flllorney I nvenlor- June 13, 1933. GREGORY 1,913,802

CLUTCH DISK Filed Nov. 10, 1931 3 Sheets-Sheet 2 Inventor Peferfl $6 07By% gwii fl Home y June 13. 1933. P. A. GREGORY CLUTCH DISK 3Sheet's-Sheet 3 Filed Nov. 10, 1931 I Patented June 1 3, 1933 PATENTOFFICE UNITED STATES mm A. amour. or crncaeo mom's, more (moron msi: 7

Application m mama; 1o, i981. sci-mm. 514,194.

This invention has reference to clutches, and more particularl to thattype of clutch used in a self prope led vehicle such as an automobile,tractor, truck and the like.

A primary object of the invention is to provide an improved disk formingpart of a clutch assembly, the disk being of such construction, that itmay be readily removed without disturbing other parts of the clutchassembly. I

Other objects and advantages of the invention will become apparent froma study of the following speci cation, taken in connection with theaccompanying drawings wherein:

Figurel is a fragmentary sectional elevational view of a clutch housingsuch as used on a self propelled vehicle, the fly wheel bein shown 'inelevation to clearly so illustrate t e only alteration in the con-,

struction of the'fly wheel as may be required by the use of theinvention. 1

Figure 2 is an elevational sectional view more clearly showing thearrangement of the clutch disk within the clutch assembly.

Figure 3 is a transverse sectional view taken through the fly wheelhousing "and through the improved clutch disk arranged therein.

. Figure 4 is a pan viewof the clutch disk.

Figure 5 is a 'plan View of the hub of the clutch disk, certain partsbeing broken away and shown in section. a Figure 6 is a plan view of oneof the sections forming part of the clutch disk.

Figure 7 isan edge elevational view of one of the said sections." J

' With reference more in detail to the drawings, it will be seen that myimproved clutch disk'comprises a hub designated generally by thereference character 10, the same being in the nature of a circular plateprovided with a centrally located 0 ening 11 and about said openingprovide with keyways 12 to accommodate the keys on the clutch shaft 13whereby the clutch disk is splined to said shaft in the usual manner.The hub 10 is provided with a circumferentially extending groove 14 andthe digroove 14 in alternate relation tovthe lugs of the lugs 17 asclearly suggested in Figure 4.

ranged within the fly ameter of said hub 10 is greater on one side ofthe groove than on the other side of said groove, whereby to providecomparatively long and short radial flanges 15 and 16 respectively. Onthe inner face of the flange 15 is a circular series of wedge shapedlugs 17 that taper longitudinally as they approach the inner wall of thegroove 14 as clearly suggested'in Figure 5. 1

o The clutch face portion of the clutch disk consists of a series ofidentically shaped and constructed segmental sections 18 which havetheir smallest ends insertable in the 17. At said smallest or inner endthe sections 18 have concave edges 19 to conformably engage the innerwall .of the groove 14. Inwardly from their convex edges, each of thesections 18, on relatively opposite edges thereof, is notched, as at 20,to. provide shoulders 21 engageable with the outer edges The portions ofthe sections 18 that ex tend radially outwardly beyond the outer ends'of the lugs 17 are arranged in end to end relation, and at theirabutting ends are interlocked throughgthe medium of tongueand groovemeans 22, 23. 1 I

The sections 18 arefsecured in assembled relation on'the hub 10 throughthe medium of bolts or other fastening elements 24 that have threadedengagement with the flange 15 of the hub 10. Each section 18, onrelatively opposite sides thereof and adjacent its outer edge, isprovided with a facing of asbestos 25 or other suitable material.

In actual practice, and as clearly shown in Figure 3, my improved clutchor disk is used to replace the usual type of clutch disk, now in use,and is splined to the shaft 13 in the manner before explained, andarwheel' 26 .as clearly shown in said Figure.

In accordance with the present invention, the periphery of the fly wheel26 is provided with a circular series of spaced slots 27 elongatedcircumferentially of the fly wheel and of suitable length as to permitWith a clutch disk embodying the tea tures of the present invention, itwill be seen that one has ready access to the interior of the fly wheel26, to loosen the fastening devices 24. If the lining on only onesection is worn so as to requlre replacement, it is apparent that thesaid one section 18 may be moved opposite to a slot 27 and u on'loosening of the fastenin device 24 hol ing that section 18 in place, te same may be removed by passing the section 18 through the slot 27, anda new section passed through the slot and properly positioned andfasten-- ed in place as a substitute for the removed section.

Even though I have herein shown and described the preferred embodimentofthe invention it is to be understood that the same is susceptible offurther changes, modifications and improvements coming within the scopeof the appended claims.

Having thus described my invention, what I claim as new is: p

1. A. clutch disk comprising a hub, comparativelylong and short spaced,opposed, radial flanges on the periphery of the hub, a plurality ofsubstantially segmental see- I tions mounted between the flanges andengaged with the periphery of the hub, said sections projecting beyondthe periphery of the long flange, and means for detachably securing saidsections to the. inner side of the comparatively long flange.

' 2. A clutch disk comprising a hub, comparatively long and shortspaced, opposed, radial flanges formed integral with the periphery ofthe hub, said flanges, in conjunction with the periphery of the hub,defining an annular groove, the outer portion of the I comparativelylong flange having threaded openings therein, substantially segmentalsections engaged in the cove and having openings therein registermg withthe open ings in the comparatively long flange, and bolts passing throuh the second named openings and threadedly engaged in the first namedopenings for detachably securaeaaeee ner side of the comparatively longflange, a plurality of substantially segmental sections mounted in thegroove, said sections having complemental recesses intheir adjacentedges for the reception ofthe lugs,

and means detachably securing the sections to the comparativelylongflange. A

4. A clutch disk comprising a hub, comparatively long and short spaced,0 posed,

radial flanges on the periphery of t e hub,

said flanges, in con'unction with the peripheryof the hub de ning anannular groove, su stantially wedge-shaped-lugs on the 'inner side ofthe comparatively long flange,

a plurality of substantially segmental sec- In testimony whereof I afixmy signature.

' PETER A. Ganeonr.

ing the sections in position, said sections projecting beyond theperiphery of the long flange.

3; A clutch disk comprising a hub, comparatively long and short spaced,opposed, radial flanges on the periphery of the hub, said flanges, inconunction with the periphery of the hub r If: an annular groove,substantially wedge-shaped lugs on the in-

